📄 what_s_new_.html
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<li>
Many new modification commands.
<li>
Many new interpolations.
<li>
Sound enhancements: <a href="Sound__Lengthen__PSOLA____.html">Sound: Lengthen (PSOLA)...</a>, <a href="Sound__Deepen_band_modulation___.html">Sound: Deepen band modulation...</a>
<li>
<a href="Source-filter_synthesis.html">Source-filter synthesis</a> tutorial, <a href="Sound___IntensityTier__Multiply.html">Sound & IntensityTier: Multiply</a>, <a href="Sound___FormantTier__Filter.html">Sound & FormantTier: Filter</a>, <a href="Formant__Formula__frequencies____.html">Formant: Formula (frequencies)...</a>, <a href="Sound__Pre-emphasize__in-line____.html">Sound: Pre-emphasize (in-line)...</a>.
</ul>
<p>
Labelling</p>
<ul>
<li>
TextGrid queries (<b>Get</b> times and labels in a script).
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<a href="TextGrid__Count_labels___.html">TextGrid: Count labels...</a>.
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<a href="PointProcess__To_TextGrid__vuv____.html">PointProcess: To TextGrid (vuv)...</a>: get voiced/unvoiced information from a point process.
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IntervalTier to TableOfReal: labels become row labels.
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TextTier to TableOfReal.
</ul>
<p>
Numerics and statistics library</p>
<ul>
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Multidimensional scaling (Kruskal, INDSCAL, etc).
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<a href="TableOfReal.html">TableOfReal</a>: Set value, Formula, Remove column, Insert column, Draw as squares, To Matrix.
</ul>
<p>
Phonology library</p>
<ul>
<li>
OT learning: new strategies: weighted symmetric plasticity (uncancelled or all).
</ul>
<p>
Praat shell</p>
<ul>
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First Linux version.
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Eight new functions like e.g. <i>hertzToBark</i> in <a href="Formulas_4__Mathematical_functions.html">Formulas 4. Mathematical functions</a>.
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<a href="Praat_script.html">Praat script</a>: procedure arguments; object names.
</ul>
<p>
Documentation:</p>
<ul>
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230 more man pages (now 630).
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Hypertext: increased readability of formulas, navigation with keyboard.
</ul>
<h3>
Praat 3.6, October 27, 1997</h3>
<p>
Editors:</p>
<ul>
<li>
Intuitive position of B and E buttons on left-handed mice.
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<a href="SoundEditor.html">SoundEditor</a>: copy <i>windowed</i> selection to list of objects.
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<a href="SoundEditor.html">SoundEditor</a>: undo Cut, Paste, Zero.
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<a href="SpectrumEditor.html">SpectrumEditor</a>: copy band-filtered spectrum or sound to list of objects.
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<a href="ManipulationEditor.html">ManipulationEditor</a>: LPC-based pitch manipulation.
</ul>
<p>
Objects:</p>
<ul>
<li>
Use '-', and '+' in object names.
</ul>
<p>
Phonetics library</p>
<ul>
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LPC-based resynthesis in <a href="ManipulationEditor.html">ManipulationEditor</a>.
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<a href="Sound.html">Sound</a>: direct modification without formulas (addition, multiplication, windowing)
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<a href="Sound.html">Sound</a>: filtering in spectral domain by formula.
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Create a simple <a href="Pitch.html">Pitch</a> object from a <a href="PitchTier.html">PitchTier</a> (for <i>F</i><sub>0</sub>) and a <a href="Pitch.html">Pitch</a> (for V/U).
<li>
Semitones in <a href="PitchTier.html">PitchTier</a> tables.
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<a href="PointProcess.html">PointProcess</a>: transplant time domain from <a href="Sound.html">Sound</a>.
<li>
Much more...
</ul>
<p>
Phonology library</p>
<ul>
<li>
Computational Optimality Theory. See <a href="OT_learning.html">OT learning</a>.
</ul>
<p>
Hypertext</p>
<ul>
<li>
You can use <a href="ManPages.html">ManPages</a> files for creating your own tutorials. These contains buttons for playing and recording sounds, so you can use this for creating an interactive IPA sound training course.
</ul>
<p>
Scripting:</p>
<ul>
<li>
Programmable <a href="Praat_script.html">Praat script</a> language: variables, expressions, control structures, procedures, complete dialog box, exchange of information with Info window, continuation lines.
<li>
Use system-independent relative file paths in <a href="Praat_script.html">Praat script</a>.
<li>
<a href="ScriptEditor.html">ScriptEditor</a>: Run selection.
</ul>
<p>
Graphics:</p>
<ul>
<li>
Rotation and scaling while printing the <a href="Picture_window.html">Picture window</a>.
<li>
Apart from bold and italic, now also bold-italic (see <a href="Text_styles.html">Text styles</a>).
<li>
Rounded rectangles.
<li>
Conversion of millimetres and world coordinates.
<li>
Measurement of text widths (screen and PostScript).
</ul>
<p>
Unix:</p>
<ul>
<li>
Use the <a href="sendpraat.html">sendpraat</a> program for sending messages to running Praat programs.
</ul>
<p>
Mac:</p>
<ul>
<li>
Praat looks best with the new and beautiful System 8.
</ul>
<h3>
Praat 3.5, May 27, 1997</h3>
<p>
New editors:</p>
<ul>
<li>
<b>TextGridEditor</b> replaces and extends LabelEditor: edit points as well as intervals.
<li>
<b>AnalysisEditor</b> replaces and extends PsolaEditor: view pitch, spectrum, formant, and intensity analyses in a single window, and allow pitch and duration resynthesis by <b>PSOLA</b> and more (would be undone in 3.9.19).
<li>
<b>SpectrumEditor</b> allows you to view and edit spectra.
</ul>
<p>
Praat shell:</p>
<ul>
<li>
<b>History mechanism</b> remembers all the commands that you have chosen, and allows you to put them into a script.
<li>
<b>ScriptEditor</b> allows you to edit and run any Praat script, and to put it under a button.
<li>
All added and removed buttons are remembered across sessions.
<li>
<b>ButtonEditor</b> allows you to make buttons visible or invisible.
</ul>
<p>
Evaluations:</p>
<ul>
<li>
In his 1996 doctoral thesis, Henning Reetz compared five pitch analysis routines; <a href="Sound__To_Pitch__ac____.html">Sound: To Pitch (ac)...</a> appeared to make the fewest errors. H. Reetz (1996): <i>Pitch Perception in Speech: a Time Domain Approach</i>, Studies in Language and Language Use <b>26</b>, IFOTT, Amsterdam (ICG Printing, Dordrecht).
</ul>
<p>
Documentation:</p>
<ul>
<li>
140 more man pages (now 330).
<li>
Tables and pictures in manual.
<li>
Printing the entire manual.
<li>
Logo.
</ul>
<p>
New classes:</p>
<ul>
<li>
Labelling & segmentation: <b>TextGrid</b>, <b>IntervalTier</b>, <b>TextTier</b>.
<li>
Analysis & manipulation: <b>Analysis</b>.
<li>
Statistics: <b>TableOfReal</b>, <b>Distributions</b>, <b>Transition</b>
</ul>
<p>
File formats:</p>
<ul>
<li>
Read and write rational numbers in text files.
<li>
Read 8-bit .au sound files.
<li>
Read and write raw 8-bit two's-complement and offset-binary sound files.
</ul>
<p>
Audio:</p>
<ul>
<li>
16-bit interactive Sound I/O on Mac.
<li>
Record sounds at 9.8 kHz on SGI.
</ul>
<p>
New commands:</p>
<ul>
<li>
Two more pitch-analysis routines.
<li>
Sound to PointProcess: collect all maxima, minima, zero crossings.
<li>
PointProcess: set calculus.
<li>
TextGrid: extract time-point information.
<li>
Compute pitch or formants at given time points.
<li>
Put pitch, formants etc. in tables en get statistics.
<li>
Many more...
</ul>
<p>
Macintosh:</p>
<ul>
<li>
16-bit interactive sound I/O.
<li>
Fast and interpolating spectrogram drawing.
<li>
Phonetic Mac screen font included in source code (as a fallback to using SIL Doulos IPA).
<li>
Keyboard shortcuts, text editor, help under question mark, etc.
</ul>
<h3>
Praat 3.3, October 6, 1996</h3>
<ul>
<li>
Documentation: hypertext help browser, including the first 190 man pages.
<li>
New editors: class <b>TextTier</b> for labelling times instead of intervals.
<li>
New actions: <b>Formant</b>: Viterbi tracker, Statistics menu, Scatter plot.
<li>
Evaluation: For HNR analysis of speech, the cross-correlation method, which has a sensitivity of 60 dB and a typical time resolution of 12 milliseconds, must be considered better than the autocorrelation method, which has a better sensitivity (80 dB), but a much worse time resolution (30 ms). For pitch analysis, the autocorrelation method still beats the cross-correlation method because of its better resistance against noise and echos, and despite its marginally poorer resolution (15 vs. 12 ms).
<li>
User preferences are saved across sessions.
<li>
The phonetic X screen font included in the source code.
<li>
Xwindows resources included in the source code
<li>
Graphics: eight colours, small caps, text rotation.
<li>
File formats: Sun/NexT mu-law files, raw matrix text files, Xwaves mark files.
<li>
Accelerations: keyboard shortcuts, faster dynamic menu, Shift-OK keeps file selector on screen.
<li>
Class changes: <b>StylPitch</b> and <b>MarkTier</b> are now called <b>PitchTier</b> and <b>TextTier</b>, respectively. Old files can still be read.
<li>
Script warning: all times in dialogs are in seconds now: milliseconds have gone.
</ul>
<h3>
Praat 3.2, April 29, 1996</h3>
<ul>
<li>
Sound I/O for HPUX, Sun Sparc 5, and Sun Sparc LX.
<li>
Cross-correlation pitch and HNR analysis.
<li>
Facilities for generating tables from scripts.
<li>
Editing and playing stylized pitch contours and point processes.
<li>
PSOLA pitch manipulation.
<li>
Spectral smoothing techniques: cepstrum and LPC.
<li>
Time-domain pitch analysis with jitter measurement.
<li>
Read and write Bell-Labs sound files and Kay CSL audio files.
<li>
Replaced IpaTimes font by free SILDoulos-IPA font, and embedded phonetic font in PostScript picture.
<li>
Completed main phonetic characters.
</ul>
<h3>
Praat 3.1, December 5, 1995</h3>
<ul>
<li>
Add and remove buttons dynamically.
<li>
DataEditor (Inspect button).
<li>
Initialization scripts.
<li>
Logarithmic axes.
<li>
Call remote ADDA server directly.
</ul>
<h3>
To do</h3>
<ul>
<li>
ManipulationEditor: LPC manipulation of duration and intensity.
<li>
TextGrid & Sound: Extract intervals with margins.
<li>
Spectrum: draw power, re, im, phase.
<li>
Formant: To Spectrum (slice)... (combines Formant-to-LPC and LPC-to-Spectrum-slice)
<li>
Read and/or write Matlab files, MBROLA files, Xwaves files, CHAT files.
<li>
Matrix: draw numbers.
<li>
Fractions with \f{a|b}.
<li>
More fonts for manual.
<li>
Move objects up and down list.
<li>
Spectrogram cross-correlation.
<li>
Spectral moments (done).
<li>
Labels in AIFC file.
<li>
Improve scrolling and add selection in hyperpages.
<li>
Segment spectrograph?
<li>
Phoneme-to-articulation conversion??
</ul>
<h3>
Known bugs in the all edition</h3>
<ul>
<li>
(small) No navigation by tabs.
<li>
(small) Tabs in texts and scripts should be considered spaces.
</ul>
<h3>
Known bugs in the Macintosh version</h3>
<ul>
<li>
(small) Pause window modal.
<li>
(small) Cascade buttons grey after suspend+resume during progress window.
<li>
Movie window cannot be closed.
</ul>
<h3>
Known bugs in the Windows version</h3>
<ul>
<li>
Cannot stand infinitesimal zooming in SpectrogramEditor.
<li>
Clipboards with greys sometimes become black-and-white after use of colour.
</ul>
<h3>
Known bugs in the Unix versions</h3>
<ul>
<li>
(small) Motif messaging windows should have no parent and be modeless.
</ul>
<h3>
Known bugs in the Linux version</h3>
<ul>
<li>
Sounds shorter than 200 ms do not always play (workaround: add zeroes in prefs).
<li>
Keyboard shortcuts do not work if NumLock is on.
<li>
Progress window does not always disappear.
</ul>
<h3>
Known bugs in the Solaris version</h3>
<ul>
<li>
(serious for some) File names run out of the window in some Motif versions.
</ul>
<h3>
Known bugs in the HP version</h3>
<ul>
<li>
(serious for some) Sound recording should be from audioserver instead of local.
</ul>
<hr>
<address>
<p>© ppgb, May 10, 2005</p>
</address>
</body>
</html>
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